Spokeshave



(No Model.)

A. GUMZ.

UNITED STATES PATENT ALBERT* GUMZ, OF MILWAUKEE, WISCONSIN.

SPOKESHV.

SPECIFICATION forming part of Letters Patent No. 546,321, datedSeptember 17, 1895.

Application filed January 20, 189i- Serlal No. 497,499- (No model.)

To @ZZ whom it may concern:

Be it known that I, ALBERT GUMZ, a citizen of the United States, and aresident of Milwaukee, in the county of Milwaukee, and in the IEiStaieof Wisconsin, haveinvented certain new and useful Improvements inSpokeshaves; and I do hereby declare that the following is a full,clear, and exact description thereof.

My invention relates to spokeshaves; and it consists in certainpeculiarities of construction and combination of parts, as will be fullyset forth hereinafter and subsequently claimed.

In the drawings, Figure l is a top view of the device partly in section.Fig. 2 is a front view ot part of the same, part-ly broken away, andwith'the set-screw in section, on the line 2 2 of Fig'. a. Fig. 3 is aview with the parts in the same relative positions as in the precedingiigure, but looking from the other side, with portions removed, on theline 3 3 of Fig. 4.-. Fig. et is a transverse sectional View on the lineet et of Fig. 2.

A A represent the handles of the device, and B the back-plate, C C thesides, and D the front bar of the frame or housing, all of these partsbeing preferably cast solidly together in one piece, leaving the usualslot or opening o; for the passage of the cutting-blade E therethrough.On its under side this blade is provided with series of transversegrooves e e for engagement with pins or projections ff on the free endsot the short arms of the bell-crank levers F F, pivoted, as shown at bb, to the said back-plate B of the frame or housing. The long arms ofthese levers project beyond the top edge of said plate and terminate inthumb-pieces d d. The backplate B is provided with a raised portion h toserve as a stop to limit the inward movement of the long arms of saidlevers F.

G is a retaining-plate adapted to rest on the upper side of the blade E,and provided at each side with projections or pins g g for engagementwith grooves c c in the sides C Cof the housing or frame.

l-I is a set-screw passing through a screwthreaded hole in theretainingplate G, and bearing against the blade E when the latter hasbeen adjusted.

The operation of my device will be readily understood from the foregoingdescription of its construction taken in connection with theaccompanying drawings. The long arms of the levers F F are drawn inwardagainst the stop 7L, and the blade E laid thereon with the pins ff inengagement with the grooves e e in said blade. The retaining-plate G isthen placed upon the blade with the pins g g of said plate within thegrooves c c in the side of the housing, and before the set-screwH istightened the levers F F are moved out or in, so that the edge of saidplate is advanced or retracted with relation to the opening d therequired distance, and then the said 'set-screw H is tightened and thedevice ready for operation. By my device the blade may be adjustedevenly by simultaneous and equal movement ot both levers; or, ifpreferred, either end of said blade may be advanced or retracted to agreater extent than the other end by simply operating the correspondinglever, and this can be done at any time by simply loosening theset-screw and operating the lever or levers without taking out the bladeor detaching the parts, and hence a great saving of time is effected andthe ut= most nicety of adjustment insured.

From the foregoing it will be seen that the described bell-crank leversperform the double function of advancing and retracting the blade by asimultaneous movement of both and adjusting the edge of said blade tocut evenly by a slight independent movement of said bell-crank levers.

Having now fully described my invention, what I claim as new, and desireto secure by Letters Patent, is-

A spoke-shave comprising a suitable handled housing, a blade, and a pairof pivoted bell-crank levers in engagement with said blade for advancingand retracting said blade by a simultaneous movement of both of saidlevers, and for adjusting the edge of said blade to cut evenly by aslight independent 9 5 ALBERT GUMZ. Witnesses:

H. G. Unnnnwoop, HENRY DANKERT.

ICO

